EP0286494A1 - Vorrichtung zum Positionieren eines Endes von länglichen Kunststoffelementen vor dem Schweissen - Google Patents

Vorrichtung zum Positionieren eines Endes von länglichen Kunststoffelementen vor dem Schweissen Download PDF

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Publication number
EP0286494A1
EP0286494A1 EP88400689A EP88400689A EP0286494A1 EP 0286494 A1 EP0286494 A1 EP 0286494A1 EP 88400689 A EP88400689 A EP 88400689A EP 88400689 A EP88400689 A EP 88400689A EP 0286494 A1 EP0286494 A1 EP 0286494A1
Authority
EP
European Patent Office
Prior art keywords
positioning
elongated
advantageously
cradle
chassis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88400689A
Other languages
English (en)
French (fr)
Other versions
EP0286494B1 (de
Inventor
Marc Bazinet
Jean Sauron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SAURON JOSEPH MATERIEL IND
Joseph Sauron Materiel Industriel Ste
Engie SA
Original Assignee
SAURON JOSEPH MATERIEL IND
Gaz de France SA
Joseph Sauron Materiel Industriel Ste
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SAURON JOSEPH MATERIEL IND, Gaz de France SA, Joseph Sauron Materiel Industriel Ste filed Critical SAURON JOSEPH MATERIEL IND
Priority to AT88400689T priority Critical patent/ATE81810T1/de
Publication of EP0286494A1 publication Critical patent/EP0286494A1/de
Application granted granted Critical
Publication of EP0286494B1 publication Critical patent/EP0286494B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/16—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same abutted flanges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/14—Clamps for work of special profile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/14—Clamps for work of special profile
    • B25B5/147—Clamps for work of special profile for pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5224—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces
    • B29C66/52241—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces with two right angles, e.g. for making T-shaped pieces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53909—Means comprising hand manipulatable tool
    • Y10T29/53913—Aligner or center
    • Y10T29/53917—Tube with tube

Definitions

  • the present invention relates to an apparatus for straightening and aligning the end of a first elongated piece of plastic material, such as a tube, with at least the end of a second elongated piece of material plastic, such as a tube, for their assembly, in particular end to end.
  • Apparatuses intended for this purpose comprise at least one device for positioning one of said tube ends with respect to the other, a device for holding the tube and a frame on which said positioning and mounting devices are mounted. maintenance. It can be seen in particular that these devices use straightening and alignment jaws of a compact and heavy structure, with which also heavy and bulky control devices are associated. In addition, all devices are designed for a single tube diameter.
  • the present invention aims to provide an apparatus which overcomes the aforementioned drawbacks.
  • an apparatus is characterized in relation to apparatuses of the known type and described above, in that the positioning device comprises a pusher member mounted radially movable relative to the axis of the end in its upright and aligned position, with which it is associated, and angularly movable around this axis, in a support structure, so as to be able to exert a predetermined radial lateral pressure with a view to the desired positioning thereof.
  • the support structure of the pusher member comprises a hoop and the pusher member is advantageously formed by the piston of a jack such as a hydraulic jack mounted in a support in the form of a movable nut on said hoop.
  • a device for holding the device according to the invention comprises a support part mounted fixed on the chassis and a movable carriage perpendicular to the axis of the elongated part which it maintains, on the support, the trolley advantageously comprising means forming a cradle for housing said part and a tight retaining means for the latter in the cradle, such as a tightening strap anchored on both sides of the cradle so as to surround the free circumferential part of the piece, radially opposite said cradle means.
  • the apparatus according to the invention which is shown by way of example in FIG. 1, is designed to allow the ends of three plastic tubes, for example stored, wound on reels to be positioned in view and during the operations of their connection.
  • the device comprises three parts I, II and III each adapted for gripping, tightening and aligning one end of the tube and ensuring its maintenance during the heating and cooling cycle of the accessories. junction such as sleeves, which are known per se and are therefore not shown.
  • junction such as sleeves, which are known per se and are therefore not shown.
  • the three parts I, II and III are articulated in 1 and 2.
  • Each part I, II or III comprises a chassis essentially comprising a beam 3 of steel tube of square section, which rests at its free end on a foot 4, a jaw-carriage 5 for the tightening and translation of a tube and a movable nut hoop 6 for the correct positioning of the end of the tube with a view to its alignment with respect to the ends of the other tubes, to which this end must be connected.
  • the broken lines 8 symbolize the axes of the tubes with their ends in their aligned position.
  • the nut 7 is angularly displaceable in a plane perpendicular to the axis 8 around it, on the periphery of the arch 6.
  • a jaw-carriage 5 according to the invention comprises a fixed support part 10 provided with a foot 11 for fixing to the beam frame 3.
  • This foot 11 has a cross section complementary to that of the beam and advantageously bears on these surfaces intended to come into contact with the beam of the projecting elements 12.
  • the support part 10 is provided with two pin-clamping devices 13 allowing the jaw-carriage 5 to be immobilized on beam 3.
  • a portion 14 forming the carriage itself is mounted to slide in translation in a direction perpendicular to the plane defined by the axis of the beam 3 and the axis of the tube 8 aligned, on L-shaped slides 15 provided at each end of the part of the fixed support 10.
  • the carriage part 14 comprises an upper plate 17 and a lower counter plate 18, which are removably assembled using screws 19, so that the free arms of the L-shaped slides 'engage between the two plates.
  • the support 10 and carriage 14 parts are made of a light material, such as light alloy cast iron, for example aluminum alloy. As is clear from FIGS. 2 and 3, these parts are also produced, in particular the carriage part 14, by providing recesses and ribs suitable for obtaining a light and robust device.
  • Profiled elements 20, 21 with an L-shaped cross section, for example made of stainless steel, are interposed respectively between the upper plate 17 and the slide 15, on the one hand, and the counter plate 18 and the slide 15 on the other hand , to ensure a smooth sliding of the trays or slides.
  • the upper plate 17 carries on its upper surface, at each end an element 22 having a recess in the form of an arc of a circle in the plane perpendicular to the axis of the tube 8 and open upwards.
  • the two elements 22 thus constitute a cradle allowing the support of a tube, as is shown diagrammatically in FIG. 2.
  • Each cradle element 22 is associated with a tightening strap 23 advantageously made of polyester which is anchored on both sides. 'Another of the element 22, on the carriage plate 14, respectively at 24 and 25, this last anchor point being provided with winding means allowing the strap 23 to return the tube still in its appropriate position in the cradle.
  • the contact surfaces with the tube, cradle elements 22, have a chamfered shape which is designed not to injure the tube, when it is tightened by straps 23.
  • the carriage part 14 can be moved in translation, on the slides 15 of the fixed support part 10 using a unidirectional effect driving device, comprising essentially a strap 27 and winding means indicated at 28 which are mounted on the leg portion 12, the free end of the strap 27 being fixed on the lower surface of the counter-plate 18 of the carriage 14.
  • the jaws-carriage 5 of the parts I and II of the apparatus according to the invention, which are shown in FIG. 1, are positioned, advantageously, head to tail, on the chassis 3.
  • the carriage 14 of a jaw-carriage 5 is provided with a means for locking the carriage on the slides 15 of the fixed support part 10, using advantageously actuating means.
  • manual such as a lever schematically indicated in Figure 3 at 29.
  • a straightening arch 6 consists of two annular elements 31, 32, parallel to each other and arranged at a certain axial distance perpendicular to the 'axis of tube 8. These two elements 31, 32 are assembled at the bottom by spacers 33 and can be removably fixed by pins 34 on a leg portion 35 which is slidably mounted on the chassis beam 3. On notes that the foot 34 has a passage having a cross section of rectangular shape complementary to that of the beam.
  • the movable nut 7 consists of a radially external element 38 and a radially internal element 39, which are shaped so that after their assembly by any suitable means they form on both sides and d other from their median plane parallel to the plane of the annular elements 31, 32 recesses 40, 41 each having a shape complementary to the cross section of the elements 31, 32, so that the nut 7 can move angularly around the axis 8, in the circumferential direction of the arch 6, while being perfectly maintained and guided.
  • the cavities 40 and 41 widen from the axially external face of the elements 38, 39 inwards and the annular elements 31, 32 have on their radially external and internal surfaces chamfers of a shape complementary to the cavities, so that the forces exerted on the arch are concentrated on the movable nut 7, which stiffens the assembly.
  • the movable nut 7 carries a hydraulic cylinder 43 or of any other suitable nature, by means of a fixing piece 44.
  • the cylinder extends radially through the mobile nut 7, between the annular elements 31, 32.
  • the piston rod of the jack which extends radially towards the tube axis 8 and carries at its free end a pusher head 47 which is adapted to come into contact with the lateral surface of the tube end to be positioned, as can be seen from FIG. 4 on which is shown schematically in broken line one end of the tube to be positioned in the axis 8.
  • the surface of the pusher head 47 intended to come into contact with the tube has an appropriate curvature . As shown in FIG.
  • the jacks of the various movable nut hoops are each connected via a valve element 49 to a pressure fluid control device 50, which is advantageously manually actuable, for example at the using a lever 51.
  • the actuation of the latter causes the displacement in the radial direction of the pusher head 47 moving nut 7.
  • the support legs 4 of the chassis beams 3 have recesses in the housing 52 of the beam 3, which open laterally, which makes it possible to release the foot 4 of the beam by a simple lateral movement without being obliged to act on the beam 3.
  • chassis can be provided in its part at the level of the tube connection zone with a marking facilitating the cutting of the tube.
  • each of the tubes to be connected is fixed to the jaw-carriage 5 of one part, using the cradle elements 22 and the tightening strap 23.
  • the cradle elements 22 are removable and are easily fixed by force, for example on the protuberance 53 of the upper plate 17 of the carriage 14. By appropriate displacement, facilitated by the faculty of the head-to-tail movement of the carriages 14, the ends of the tubes can be brought into an appropriate position.
  • the device according to the invention thanks to the articulation 1 between the two parts I and II allows an offset of the two tubes at a desired angle.
  • part III will be added to parts I and II. It then suffices to position the third tube appropriately with respect to the first two, in the manner which has just been stated.
  • the apparatus according to the invention has a large number of advantages.
  • the use of light alloy cast irons for the realization of the various modules of the device, the study of shapes, thicknesses and ribs allow to obtain a light, robust and unalterable device.
  • the use of tightening straps 23, made of polyester, for tightening and translation operations makes it possible to reduce the number of moving mechanical parts.
  • the modular design of the device and its low weight facilitate its installation and disassembly in excavation. It is removed without having to move the tube.
  • the carriage jaws 5 are positioned head to tail on the beam 3. The latter once at the bottom of the excavation, a symmetrical translation relative to the axis of the tube to be assembled is possible which allows greater clearance and less impasto than with known devices.
  • the fixing of the jaws-carriages does not prevent their translation in the axis of the tube before or after cutting. This allows the tubes to be brought back end to end with a minimum of effort. The good position thus found, the locking on the beam is easily carried out using pins 13. Since each jaw-carriage has two support points constituted by the cradle elements 22, the positioning of the tube is easy to perform. The movable nut straightening arch allows the straightening operation to be carried out with a latitude of around 300 ° around the arch. Finally the tools for handling the device are reduced: a single key could be sufficient.
  • the apparatus according to the invention allows the positioning of tubes of very different diameters, for example 160, 125, 110 and 90 mm by changing only the cradle elements 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Supports For Pipes And Cables (AREA)
  • Clamps And Clips (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Tyre Moulding (AREA)
  • Resistance Welding (AREA)
EP88400689A 1987-03-30 1988-03-22 Vorrichtung zum Positionieren eines Endes von länglichen Kunststoffelementen vor dem Schweissen Expired - Lifetime EP0286494B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88400689T ATE81810T1 (de) 1987-03-30 1988-03-22 Vorrichtung zum positionieren eines endes von laenglichen kunststoffelementen vor dem schweissen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8704414 1987-03-30
FR8704414A FR2613276B1 (fr) 1987-03-30 1987-03-30 Appareil pour le positionnement de l'extremite d'une premiere piece allongee, en matiere plastique, avec au moins l'extremite d'une deuxieme piece allongee en matiere plastique, en vue de leur assemblage

Publications (2)

Publication Number Publication Date
EP0286494A1 true EP0286494A1 (de) 1988-10-12
EP0286494B1 EP0286494B1 (de) 1992-10-28

Family

ID=9349568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88400689A Expired - Lifetime EP0286494B1 (de) 1987-03-30 1988-03-22 Vorrichtung zum Positionieren eines Endes von länglichen Kunststoffelementen vor dem Schweissen

Country Status (10)

Country Link
US (1) US4856168A (de)
EP (1) EP0286494B1 (de)
JP (1) JPS6416377A (de)
KR (1) KR880010890A (de)
AT (1) ATE81810T1 (de)
CA (1) CA1301436C (de)
DE (1) DE3875510T2 (de)
ES (1) ES2035329T3 (de)
FR (1) FR2613276B1 (de)
GR (1) GR3006706T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2644724A1 (fr) * 1989-03-23 1990-09-28 Fischer Ag Georg Dispositif de soudage d'une piece tubulaire en matiere synthetique a une piece de forme en matiere synthetique

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8830263D0 (en) * 1988-12-24 1989-02-22 Fusion Equipment Ltd Interconnected movable members
DE69315566T2 (de) * 1993-06-18 1998-03-26 Xeikon Nv Led-Aufzeichnungskopf
US5814182A (en) * 1997-09-19 1998-09-29 Mcelroy Manufacturing, Inc. Self-contained and self-propelled machine for heat fusing polyolefin pipes
CN103481264B (zh) * 2013-09-12 2015-06-24 广州市恒盛建设工程有限公司 一种用于焊接球球面网壳安装过程中的定位装置
WO2016044989A1 (zh) * 2014-09-23 2016-03-31 清展科技股份有限公司 推射窗之框体结构
CN107030628A (zh) * 2017-05-09 2017-08-11 安徽瑞林精科股份有限公司 一种新能源汽车vkp阀体顶压模具
KR102523661B1 (ko) * 2021-12-28 2023-04-19 윤슬(주) 배관 연결구 및 그 조립장치

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1870760A (en) * 1931-06-24 1932-08-09 John J Tipton Pipe line dolly
GB556962A (en) * 1942-07-01 1943-10-28 Henry Melich Improvements in jigs for welding, brazing or soldering
DE858160C (de) * 1950-04-04 1952-12-04 Fischer Ag Georg Montagelehre fuer den Zusammenbau von Rohrleitungen
US2817892A (en) * 1955-07-11 1957-12-31 B & J Mfg Company Jig for pre-assembling plumbing units
GB797021A (en) * 1955-12-28 1958-06-25 C & J Hampton Ltd Improvements in or relating to pipe clamps
CH371768A (de) * 1959-09-03 1963-08-31 Mewag Maschinen Und Metallware Einspannvorrichtung für miteinander winklig zu verschweissende Werkstücke
US3414950A (en) * 1967-04-03 1968-12-10 Leon F. Phariss Eccentric pipe welding clamp
US3772753A (en) * 1972-02-09 1973-11-20 E Sargeant Arrangement for aligning tubular sections for fabrication
US3828413A (en) * 1973-06-11 1974-08-13 Ridge Tool Co Pipe alignment device
US3920232A (en) * 1974-07-16 1975-11-18 Julius Clark Apparatus for aligning pipe ends
FR2586079A1 (fr) * 1986-08-06 1987-02-13 Innoge Sam Positionneur
FR2587272A1 (fr) * 1985-09-19 1987-03-20 Gaz De France Procede et dispositif de redressement et d'alignement d'une premiere piece en matiere plastique par exemple thermosoudable avec une deuxieme piece en matiere plastique similaire pouvant egalement etre redressee en vue de leur assemblage bout a bout

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3661378A (en) * 1969-09-30 1972-05-09 Crawford Fitting Co Gripping device
JPS5038380B2 (de) * 1972-04-07 1975-12-09
US4039115A (en) * 1976-06-01 1977-08-02 Acf Industries, Incorporated Apparatus for obtaining abutting contact of hollow tank courses to be circumferentially welded
IT1170652B (it) * 1981-01-26 1987-06-03 Selenia Ind Elettroniche Sistema di caricamento idraulico a galleggiamento controllato
FR2587171B1 (fr) * 1985-09-17 1988-09-23 Guillois Hubert Engin pour ligne de peche et ligne de peche munie de cet engin

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1870760A (en) * 1931-06-24 1932-08-09 John J Tipton Pipe line dolly
GB556962A (en) * 1942-07-01 1943-10-28 Henry Melich Improvements in jigs for welding, brazing or soldering
DE858160C (de) * 1950-04-04 1952-12-04 Fischer Ag Georg Montagelehre fuer den Zusammenbau von Rohrleitungen
US2817892A (en) * 1955-07-11 1957-12-31 B & J Mfg Company Jig for pre-assembling plumbing units
GB797021A (en) * 1955-12-28 1958-06-25 C & J Hampton Ltd Improvements in or relating to pipe clamps
CH371768A (de) * 1959-09-03 1963-08-31 Mewag Maschinen Und Metallware Einspannvorrichtung für miteinander winklig zu verschweissende Werkstücke
US3414950A (en) * 1967-04-03 1968-12-10 Leon F. Phariss Eccentric pipe welding clamp
US3772753A (en) * 1972-02-09 1973-11-20 E Sargeant Arrangement for aligning tubular sections for fabrication
US3828413A (en) * 1973-06-11 1974-08-13 Ridge Tool Co Pipe alignment device
US3920232A (en) * 1974-07-16 1975-11-18 Julius Clark Apparatus for aligning pipe ends
FR2587272A1 (fr) * 1985-09-19 1987-03-20 Gaz De France Procede et dispositif de redressement et d'alignement d'une premiere piece en matiere plastique par exemple thermosoudable avec une deuxieme piece en matiere plastique similaire pouvant egalement etre redressee en vue de leur assemblage bout a bout
FR2586079A1 (fr) * 1986-08-06 1987-02-13 Innoge Sam Positionneur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2644724A1 (fr) * 1989-03-23 1990-09-28 Fischer Ag Georg Dispositif de soudage d'une piece tubulaire en matiere synthetique a une piece de forme en matiere synthetique

Also Published As

Publication number Publication date
ES2035329T3 (es) 1993-04-16
US4856168A (en) 1989-08-15
JPS6416377A (en) 1989-01-19
KR880010890A (ko) 1988-10-25
EP0286494B1 (de) 1992-10-28
DE3875510T2 (de) 1993-05-06
ATE81810T1 (de) 1992-11-15
GR3006706T3 (de) 1993-06-30
FR2613276A1 (fr) 1988-10-07
FR2613276B1 (fr) 1989-12-08
DE3875510D1 (de) 1992-12-03
CA1301436C (en) 1992-05-26

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